I got the kit as a gift many years ago before I had the DRB III. I also have a second set of rims I put on for the track weekend I used to do, so this gave me a good way to have two identical sets so I could more easily swap between them. I can confirm they work and are handy for something like a second set of rims, but if you already have a DRB and only one set to worry about, regular replacements probably make just as much sense. I've got two full clone sets now since my factory ones finally gave up. I was hoping I might be able to somehow remove the potting compound to replace the batteries as well, but this stuff is more like hard curing epoxy and not the softer silicone style conformal coating, so no idea how you might remove it. I was hoping there was some magic chemical out there that would dissolve just in and not everything else, but guessing if it's strong enough to melt the coating that it would likely hurt whatever is under it as well.